Re: [Pce] I-D Action: draft-carrozzo-pce-pcep-route-price-00.txt
zhang.fei3@zte.com.cn Thu, 22 March 2012 09:08 UTC
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To: Gino Carrozzo <g.carrozzo@nextworks.it>
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Subject: Re: [Pce] I-D Action: draft-carrozzo-pce-pcep-route-price-00.txt
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Hi Gino An interesting idea. If my understanding is not wrong, the draft describes the architecture and PCEP extensions that the NSBP (PCC) sends out the route offer computation request to Service-PCE. Since that the NMS (PCC) sends out the PCReq messages to PCE is described in RFC4655, What the procedure looks like if NMS is also involved? or NMS will not appear when the route offer computation is adopted? Sorry that I am not familar with the TMF IPSPHERE Framework, hope your clarification. Regards Fei Gino Carrozzo <g.carrozzo@nextworks.it> 发件人: pce-bounces@ietf.org 2012-03-04 16:21 收件人 pce@ietf.org 抄送 主题 Re: [Pce] I-D Action: draft-carrozzo-pce-pcep-route-price-00.txt Dear all we've just posted a new I-D about extending PCEP with a new route information, the price. As explained in the I-D, the route price is an additional info with respect to the route cost(s) currently well covered by existing PCE RFCs And this extension seems to us quite useful in those scenarios where a Service Plane interfaces to PCE for elaborating its route offers. Your feedbacks and comments would be very much appreciated. br Gino On 04/03/2012 9.06, internet-drafts@ietf.org wrote: > A New Internet-Draft is available from the on-line Internet-Drafts directories. > > Title : PCEP extensions for the computation of route offers with price > Author(s) : Gino Carrozzo > Giacomo Bernini > Giada Landi > Filename : draft-carrozzo-pce-pcep-route-price-00.txt > Pages : 17 > Date : 2012-03-04 > > The PCE defined in RFC4655 is a functional entity generally confined > in the control plane to elaborate explicit optimal routes with > related costs to be installed as [G]MPLS tunnels/LSPs. The resulting > route cost(s)/metric(s) are Traffic Engineering indicators used by > the network administrator (carrier) to optimize the usage of its > network resources. > > In this document a framework for the usage of PCE in cooperation with > the Network Service and Business Plane (NSBP) is proposed, along with > related PCEP extensions. The NSBP invokes this extended PCE (service > PCE) to trigger the computation of network service offers with > related price information. The price of a network connectivity > service generally depends on strategic factors, but it could also be > influenced by the amount of mobilized network resources (along the > route), the ingress/egress interfaces/PoPs, etc. Therefore, it could > be provided by an extended service-PCE as an additional route > information. > > This document focuses on the extensions to the PCEP protocol in > support of the computation of route prices for intra- and inter- > domain network connectivity services. Mechanisms for elaborating and > retrieving price information in the PCE are vendor-specific and out > of the scope of this document. > > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-carrozzo-pce-pcep-route-price-00.txt > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > This Internet-Draft can be retrieved at: > ftp://ftp.ietf.org/internet-drafts/draft-carrozzo-pce-pcep-route-price-00.txt > > _______________________________________________ > I-D-Announce mailing list > I-D-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/i-d-announce > Internet-Draft directories: http://www.ietf.org/shadow.html > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt > _______________________________________________ Pce mailing list Pce@ietf.org https://www.ietf.org/mailman/listinfo/pce
- Re: [Pce] I-D Action: draft-carrozzo-pce-pcep-rou… Gino Carrozzo
- Re: [Pce] I-D Action: draft-carrozzo-pce-pcep-rou… zhang.fei3
- Re: [Pce] I-D Action: draft-carrozzo-pce-pcep-rou… Gino Carrozzo